| 摘要 |
PURPOSE:To prevent bending from being produced due to deformation caused by thermal energy and a self-weight by fixing respective wheels on a rotor shaft in order, and cooling them to room temperature. CONSTITUTION:In shrink-fitting each wheel (b) to a rotor shaft (a) one end of the rotor shaft (a) is fixed on a bearing parts 23a with a clamping member 25. Thereafter, a wheel support device 27 is transferred to a chain line position. Then, a wheel (b) held on a device 27 is heated by a heater and thermally expanded. This is shrink-fitted to a prescribed position on the rotor shaft (a) and fixed thereon. The respective wheels (b) are shrink-fitted in order to the rotor shaft (a), fixed and cooled to room temperature. |
